One independent numeric sample summarized by mean, sample standard deviation, and n; two-sided test only.
Statistical Significance Calculator
Enter your values below to get the result first, then scroll for the full explanation and guidance.
Two-sided p-value
0.01965418Statistically significant at alpha 0.05
Two-sided p-value: 0.01965418 (Statistically significant at alpha 0.05)
This is a two-sided one-sample t test for a mean using the sample standard deviation.
One-sample t test
This is a two-sided one-sample t test for a mean using the sample standard deviation.
Result snapshot
A quick visual read of the values behind this result.
t statistic2.5
Degrees of freedom24
Two-sided p-value0.01965418
Recommended next checks
- →Check independence, sampling and distribution assumptions before interpreting the test.
- t statistic
- 2.5
- Degrees of freedom
- 24
- Two-sided p-value
- 0.01965418
Try different values to compare results.
Run a two-sided one-sample t test for a mean and compare its p-value with alpha.
Two-sided p-value
0.01965418Statistically significant at alpha 0.05
Two-sided p-value: 0.01965418 (Statistically significant at alpha 0.05)
This is a two-sided one-sample t test for a mean using the sample standard deviation.
One-sample t test
This is a two-sided one-sample t test for a mean using the sample standard deviation.
Result snapshot
A quick visual read of the values behind this result.
t statistic2.5
Degrees of freedom24
Two-sided p-value0.01965418
Recommended next checks
- →Check independence, sampling and distribution assumptions before interpreting the test.
- t statistic
- 2.5
- Degrees of freedom
- 24
- Two-sided p-value
- 0.01965418
Try different values to compare results.
Table of Contents
Table of Contents
About Statistical Significance Calculator
Statistical Significance Calculator helps you work through the main numbers for this topic quickly with a simple input flow and an instant result.
Use the calculator result as a practical starting point, then review the explanation and assumptions on the page if you want more context.
Calculation method
t = (sample mean - hypothesized mean)/(s/sqrt(n)); obtain a two-sided t-distribution p-value with n-1 degrees of freedom.
Formula explained
Calculation flow
This calculator is structured for fast UK-focused estimates with clear inputs, repeatable logic, and instant results.
Formula
Input values -> calculation engine -> instant result
How the result is built
1Enter the values requested in the form.
2The calculator applies the configured formula logic.
3The result updates instantly with a breakdown.
4Use the output to compare scenarios quickly.
Example
Example verified by the calculator's statistical inference reference cases.
Assumptions
- One independent numeric sample summarized by mean, sample standard deviation, and n; two-sided test only.
Source basis
- UK-focused calculator flow
- Structured input validation
- Instant result breakdowns
FAQ
Common questions
Trust and notes
Assumptions and important notes
This calculator is designed to give a fast estimate using the method shown on the page. Results are most useful when your inputs are accurate and the tool matches your situation.
Use the result as guidance rather than a final diagnosis or professional decision. If the result could affect health, legal, financial, or compliance decisions, verify it with a qualified source where appropriate.
- One independent numeric sample summarized by mean, sample standard deviation, and n; two-sided test only.
Method
UK calculator guidance
Last reviewed
April 17, 2026